Hadith No: 1

Narrated Abu Huraira:

I have memorized two kinds of knowledge from Allah's Messenger (s.a.w.a.) . I have propagated one of them to you and if I propagated the second, then my pharynx (throat) would be cut (i.e. killed).

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Reference: Saheeh al-Bukhari Book 3 Tradition No. 120

Hadith No: 2
Ibn Sa'd - al-Tabaqat al-Kubra - Volume 2 of the Emigrants and Helpers who did not witness Badr
The companions who embraced Islam before the Conquest of Mecca
Among the Banu Malik ibn Afsa was his brother Aslam, and he is also one of those who was swayed - Abu Huraira
Part: (4) - Page Number: (247)

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Reference: Al-Tabaqaat al-Kubra Book 4

Hadith No: 3
Ibn Abd al-Barr - Jami' Bayan al-'Ilm wa Fadlihi
Chapter on Mentioning Those Who Condemn Excessive Talking Without Understanding and Comprehending It
Volume: (2) - Page Number: (1002)
1910 - He said: And Ahmad ibn Salih narrated to us, from Ibn Abi Fudayk, who said: Ibn Abi Dhi'b narrated to me from Sa'id ibn Abi Sa'id al-Maqbari from Abu Huraira, who said: "I memorized two containers of knowledge from the Messenger of Allah (peace be upon him and his holy progeny), and I disseminated one of them. The other, if I were to disseminate it, you would cut this throat." Ahmad said: The throat refers to the pharynx.

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Reference: Jamea' Bayaan al-Ilm wa Fadleh Book 2